Media captionMichael York is currently serving his first year of a five year jail sentence

A drink-driver who killed two of his friends has been allowed out of prison to warn pupils at his former school about his mistakes.

Michael York, 22, from Hinckley in Leicestershire, was given special permission to be released from prison to visit John Cleveland College.

Samuel Turner, then 18, and Matthew Ian Brown, then 22, died when the car they were in crashed into a tree in 2011.

York is currently serving his first year of a five year jail sentence.

Fatal Four: Cause and Effect

Driving while under the influence of drink and drugs

Not wearing a seatbelt

Using a mobile phone

Speeding

He pleaded guilty to two counts of causing death by careless driving while under the influence of alcohol at Leicester Crown Court in June 2012.

Two years ago York got behind the wheel after a 13 hour drinking binge in Leicester city centre with his friends. As he drove them home he crashed into a tree, killing his two passengers.

On Thursday York was at his former school supporting Leicestershire Fire and Rescue's Fatal Four: Cause and Effect event, which was an attempt to make students aware of the four main causes of deaths among young drivers.

Also speaking to pupils was Matthew Brown's mum Mandie who says she has forgiven York for what he did.

The 22-year-old said her forgiveness "meant everything".

"I don't forgive myself so for Mandie to forgive me for taking her boy away from her does mean a hell of a lot to me," he said.